While the character was removed during the production of the film, Belle's mother is alluded to in other materials surrounding her background. In the musical adaptation, she is mentioned in the song No Matter What where Belle's father compares her to her late mother ("You are your mother's daughter; therefore you are class. ... creme de la creme"), hinting that Belle's mother might have originally been from the upper-classes of high society; further suggesting that Belle's mother was a daughter of a 'vieux riche' family, and went on to marry a nouveau riche (Maurice). Since Belle mentions that her family having not been from the Village originally ("Every morning just the same, since the morning that we came, to this poor provincial town"), it could be argued that Belle's mother had passed away before Belle and Maurice had moved to the village.
In addition, a portrait of her reading to a younger Belle can be seen on the wall inside the replica of Belle's cottage that is a part of the Enchanted Tales with Belle attraction at Magic Kingdom. Also, she was seen with the same book that Belle got from the bookseller, indicating that she was the reason why the book was her favorite.
In the 1989 version of the original screenplay of the film, Belle's mother was planned to have been mentioned as the deceased mother of two daughters, Belle and Clarice, (this time with Belle as the oldest sister). Where-in after her death, her musicbox (the figurines on-which mirror those in the famous 18th-century painting "The Swing", by Jean Honore-Fragonard) is passed down to Belle on her 17th birthday (said-musicbox being an heirloom that had been passed-down to Belle's mother on her own 17th birthday). But ultimately she was never brought up at all in the final edits of the 1991 original screenplay.
Her passing marked the beginning of a series of misfortunes that would befall her family before her daughter, Belle, willingly exchanged her own freedom for her father's life, and later brakes the curse that plagued the Beast.
In the live-action adaptation, Belle's mother was a victim of plague in Paris when Belle was only a baby. Before Belle's mother died, she told Maurice to get himself and their daughter to safety. To escape the plague, Maurice and Belle then moved from Paris to Villenuve. Maurice remained in a state of grief and drew pictures of her with Belle to cope with his loss, but he would not tell Belle the true cause of her death.